captsa add alert

db.py

@@ -46,6 +46,15 @@ def init_db():
         )
     ''')
 
+    # Key-value store — generic flags (e.g. captcha_active)
+    c.execute('''
+        CREATE TABLE IF NOT EXISTS kv_store (
+            key        TEXT PRIMARY KEY,
+            value      TEXT,
+            updated_at TEXT NOT NULL DEFAULT (datetime('now'))
+        )
+    ''')
+
     # Migration: add new columns if upgrading an existing database
     for _col in [
         'ALTER TABLE town_state ADD COLUMN player_id   TEXT',